Automatic power gear shifting device of tractor gearbox

Abstract

According to the technical scheme, the automatic power gear shifting device is characterized in that a detector is arranged and used for achieving automatic gear shifting adjustment when a vehicle body is in an uneven road condition; when the swing rod swings, the swing rod drives the base to swing, the base drives the radar to swing, the radar scans road conditions in the swing process and transmits scanning signals to the gearbox, the gearbox adjusts the speed of a transmission mechanism of the wheels according to scanning data, and therefore the rotating speed of the wheels is adjusted. Meanwhile, infrared rays of the infrared emitter are reflected through the reflector plate, the infrared receiver receives the infrared rays reflected by the reflector plate, the infrared receiver transmits received infrared signals to the gearbox, the gearbox adjusts the speed of a transmission mechanism of the wheels according to the interval frequency duration of the signals, and the speed of the transmission mechanism of the wheels can be adjusted according to the interval frequency duration of the signals. The rotating speed of the wheels is adjusted, and instability of a vehicle body caused by uneven road surfaces and too high speed is prevented.

Description

Technical Field

[0001] The utility model relates to the field of gearbox shifting, in particular to an automatic power shifting device for a tractor gearbox. Background Art

[0002] The tractor gearbox is an important part of the tractor transmission system. Its main function is to achieve different vehicle speeds and torque outputs by changing the combination and transmission ratio of gears to adapt to different working conditions and operation requirements. The tractor gearbox usually has multiple gears, including forward gear and reverse gear. The forward gear can be divided into low speed gear, medium speed gear and high speed gear to meet the tractor's power and speed requirements under different working conditions such as farming and transportation.

[0003] China Patent Publication Application Number: CN202123200719.4, provides a tractor gearbox, which adopts double cone synchronizers for all main transmission high gears, meshing sleeves for auxiliary transmission high, low and middle gears, and forced lubrication oil circuits for gears on intermediate shaft parts and output shaft parts, with high cost performance, and the tractor travel speed can be adjusted between 0-50 km / h, meeting the field operation requirements of different road conditions and different plots, greatly improving the performance of the product, and greatly improving the applicability of the whole machine;

[0004] However, in actual use, the gearbox is not convenient for automatic shifting and speed adjustment according to road conditions. If the road surface is relatively uneven and the speed is too fast, the body may be unstable. For this reason, we propose an automatic power shifting device for a tractor gearbox. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model aims to provide an automatic power shifting device for a tractor gearbox, wherein a swinging rod is facilitated to swing through a rotating shaft, and the swinging rod drives the base to swing when swinging, and the base drives the radar to swing, and the road conditions are scanned during the swinging of the radar, and the scanning signal is transmitted to the gearbox, and the gearbox adjusts the speed of the transmission mechanism of the wheel according to the scanning data, thereby adjusting the rotation speed of the wheel to achieve the purpose of automatic shifting and speed regulation, and at the same time, the infrared of the infrared transmitter is reflected by the reflective sheet, and the infrared receiver receives the infrared reflected back by the reflective sheet, and at the same time, the infrared receiver transmits the received infrared signal to the gearbox, and the gearbox adjusts the rotation speed of the wheel by adjusting the speed of the transmission mechanism of the wheel according to the signal interval frequency duration, so as to prevent the instability of the vehicle body caused by uneven road surface and excessive speed.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A tractor gearbox automatic power shift device comprises a frame, wherein the outer end of the frame is rotatably connected to a plurality of wheels that are symmetrically distributed, a gearbox is installed inside the frame, the gearbox is drivingly connected to the wheels, a detector is fixedly connected inside the frame, the detector is signal-connected to the gearbox, a reflector is fixedly connected to the inner side of the wheel, and the reflector is adapted to the detector; the detector comprises a shell, the inside of the shell is rotatably connected to a rotating shaft, an end of the rotating shaft away from the shell is fixedly connected to a swing rod, the bottom end of the swing rod is fixedly connected to a base, the base is located at the bottom of the shell, the base is slidably connected to the shell, the bottom end of the base is fixedly connected to a radar, and the radar is signal-connected to the gearbox.

[0008] Furthermore, a mounting seat is fixedly connected to the top of the shell, and the mounting seat is detachably connected to the gearbox.

[0009] Furthermore, an infrared emitter is fixedly connected to the front end of the housing, and the infrared emitter is matched with the reflective sheet.

[0010] Furthermore, an infrared receiver is fixedly connected to the front end of the housing and located on the right side of the infrared transmitter, and the infrared receiver is adapted to the reflective sheet.

[0011] Furthermore, the detector also includes a motor, which is installed inside the shell and fixedly connected to the shell.

[0012] Furthermore, a wheel disc is fixedly connected to the transmission end of the motor, an eccentric slider is fixedly connected to the front end of the wheel disc, and the eccentric slider is slidably connected to the swing rod.

[0013] Furthermore, the swing rod is composed of a long rod and fan-shaped leaves.

[0014] Furthermore, a sliding groove is provided at the center of the long rod, and the eccentric sliding block is slidably connected to the sliding groove.

[0015] In summary, the utility model has the following beneficial effects:

[0016] 1. The swing arm is swung by the rotating shaft. When the swing arm swings, it drives the base to swing. The base drives the radar to swing. During the radar swinging, the road conditions are scanned and the scanning signal is transmitted to the gearbox. The gearbox adjusts the speed of the wheel transmission mechanism according to the scanning data, thereby adjusting the speed of the wheel to achieve the purpose of automatic gear shifting and speed regulation, and prevent the instability of the vehicle body caused by uneven road surface and excessive speed;

[0017] 2. The infrared of the infrared transmitter is reflected by the reflective sheet, and the infrared receiver receives the infrared reflected by the reflective sheet. At the same time, the infrared receiver transmits the received infrared signal to the gearbox. The gearbox adjusts the speed of the wheel transmission mechanism according to the signal interval frequency and duration, thereby adjusting the wheel speed to achieve the purpose of automatic gear shifting and speed regulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of this embodiment;

[0019] Figure 2 is a schematic diagram of the structure of the detector in this embodiment;

[0020] Figure 3 is a schematic diagram of the structure of the detector split in this embodiment;

[0021] Figure 4 is a schematic diagram of the structure of the detector cutaway in this embodiment;

[0022] Figure 5 Schematic diagram of the structure of the swing rod in this embodiment.

[0023] In the figure, 1, frame; 2, wheel; 3, gearbox; 4, detector; 5, reflector; 401, shell; 402, mounting base; 403, infrared transmitter; 404, infrared receiver; 405, shaft; 406, swing rod; 407, base; 408, radar; 409, motor; 410, wheel disc; 411, eccentric slider. DETAILED DESCRIPTION

[0024] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0025] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0026] Reference Figure 1-Figure 5As shown, it is an automatic power shift device for a tractor gearbox in a preferred embodiment of the utility model, comprising a frame 1, the outer end of the frame 1 is rotatably connected to a plurality of wheels 2 that are symmetrically distributed, a gearbox 3 is installed inside the frame 1, the gearbox 3 is drivingly connected to the wheels 2, a detector 4 is fixedly connected inside the frame 1, the detector 4 is signal-connected to the gearbox 3, a reflector 5 is fixedly connected to the inner side of the wheel 2, and the reflector 5 is adapted to the detector 4; the detector 4 comprises a housing 401, the interior of the housing 401 is rotatably connected to a rotating shaft 405, one end of the rotating shaft 405 away from the housing 401 is fixedly connected to a swing rod 406, the bottom end of the swing rod 406 is fixedly connected to a base 407, the base 407 is located at the bottom of the housing 401, the base 407 is slidably connected to the housing 401, the bottom end of the base 407 is fixedly connected to a radar 408, and the radar 408 is signal-connected to the gearbox 3;

[0027] The rotating shaft 405 facilitates the swinging of the swinging rod 406. When the swinging rod 406 swings, it drives the base 407 to swing. The base 407 drives the radar 408 to swing. During the swinging process, the radar 408 scans the road condition and transmits the scanning signal to the gearbox 3. The gearbox 3 adjusts the speed of the transmission mechanism of the wheel 2 according to the scanning data, thereby adjusting the rotation speed of the wheel 2 to achieve the purpose of automatic gear shifting and speed regulation, and prevent the instability of the vehicle body caused by uneven road surface and excessive speed.

[0028] A mounting seat 402 is fixedly connected to the top of the housing 401 , and the mounting seat 402 is detachably connected to the gearbox 3 .

[0029] The front end of the housing 401 is fixedly connected with an infrared emitter 403 , and the infrared emitter 403 is matched with the reflective sheet 5 .

[0030] An infrared receiver 404 is fixedly connected to the front end of the housing 401 and located on the right side of the infrared transmitter 403. The infrared receiver 404 is adapted to the reflective sheet 5.

[0031] The infrared of the infrared transmitter 403 is reflected by the reflective sheet 5, and the infrared receiver 404 receives the infrared reflected by the reflective sheet 5. At the same time, the infrared receiver 404 transmits the received infrared signal to the gearbox 3. The gearbox 3 adjusts the speed of the wheel 2 by adjusting the speed of the transmission mechanism of the wheel 2 according to the signal interval frequency and duration, thereby achieving the purpose of automatic gear shifting and speed regulation.

[0032] The detector 4 further includes a motor 409 . The motor 409 is installed inside the housing 401 . The motor 409 is fixedly connected to the housing 401 .

[0033] The transmission end of the motor 409 is fixedly connected to a wheel disc 410, the front end of the wheel disc 410 is fixedly connected to an eccentric slider 411, and the eccentric slider 411 is slidably connected to the swing rod 406;

[0034] The motor 409 drives the wheel disc 410 to rotate, the wheel disc 410 drives the eccentric slider 411 to rotate, and the eccentric slider 411 drives the swing rod 406 to swing through the rotating shaft 405 .

[0035] The swing rod 406 is composed of a long rod and fan-shaped leaves.

[0036] A sliding groove is provided at the center of the long rod, and the eccentric sliding block 411 is slidably connected to the sliding groove.

[0037] Specific implementation process: the motor 409 drives the wheel 410 to rotate, the wheel 410 drives the eccentric slider 411 to rotate, the eccentric slider 411 drives the swing rod 406 to swing through the rotating shaft 405, the swing rod 406 drives the base 407 to swing when swinging, the base 407 drives the radar 408 to swing, the radar 408 scans the road conditions during the swinging process, and transmits the scanning signal to the gearbox 3, the gearbox 3 adjusts the speed of the transmission mechanism of the wheel 2 according to the scanning data, thereby adjusting the rotation speed of the wheel 2, so as to achieve the purpose of automatic gear shifting and speed regulation, and prevent the instability of the vehicle body caused by uneven road surface and excessive speed. At the same time, the infrared transmitter 403 emits infrared rays, the reflective sheet 5 reflects the infrared of the infrared transmitter 403, and the infrared receiver 404 receives the infrared reflected by the reflective sheet 5. At the same time, the infrared receiver 404 transmits the received infrared signal to the gearbox 3, the gearbox 3 can be used to detect the rotation speed of the wheel 2 according to the signal interval frequency and duration, and can adjust the rotation speed of the wheel 2 by adjusting the speed of the transmission mechanism of the wheel 2, so as to achieve the purpose of automatic gear shifting and speed regulation.

[0038] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A tractor gearbox automatic power shift device, characterized in that: The vehicle comprises a frame (1), the outer end of the frame (1) being rotatably connected to a plurality of wheels (2) which are symmetrically distributed, a gearbox (3) being installed inside the frame (1), the gearbox (3) being transmission-connected to the wheels (2), a detector (4) being fixedly connected inside the frame (1), the detector (4) being signal-connected to the gearbox (3), a reflective sheet (5) being fixedly connected to the inner side of the wheel (2), the reflective sheet (5) being compatible with the detector (4); The detector (4) comprises a housing (401), the interior of the housing (401) is rotatably connected to a rotating shaft (405), one end of the rotating shaft (405) away from the housing (401) is fixedly connected to a swing rod (406), the bottom end of the swing rod (406) is fixedly connected to a base (407), the base (407) is located at the bottom of the housing (401), the base (407) is slidably connected to the housing (401), the bottom end of the base (407) is fixedly connected to a radar (408), and the radar (408) is signal-connected to the gearbox (3).

2. The automatic power shift device for a tractor transmission according to claim 1, characterized in that: A mounting seat (402) is fixedly connected to the top end of the housing (401), and the mounting seat (402) is detachably connected to the gearbox (3).

3. The automatic power shift device for a tractor transmission according to claim 2, characterized in that: An infrared emitter (403) is fixedly connected to the front end of the housing (401), and the infrared emitter (403) is compatible with the reflective sheet (5).

4. The automatic power shifting device for a tractor transmission according to claim 3, characterized in that: An infrared receiver (404) is fixedly connected to the front end of the housing (401) and located on the right side of the infrared transmitter (403), and the infrared receiver (404) is compatible with the reflective sheet (5).

5. The automatic power shifting device for a tractor transmission according to claim 1, characterized in that: The detector (4) further comprises a motor (409), wherein the motor (409) is installed inside the housing (401), and the motor (409) is fixedly connected to the housing (401).

6. The automatic power shifting device for a tractor transmission according to claim 5, characterized in that: The transmission end of the motor (409) is fixedly connected to a wheel disc (410), the front end of the wheel disc (410) is fixedly connected to an eccentric slider (411), and the eccentric slider (411) is slidably connected to the swing rod (406).

7. The automatic power shifting device for a tractor transmission according to claim 6, characterized in that: The swing rod (406) is composed of a long rod and fan-shaped leaves.

8. The automatic power shifting device for a tractor transmission according to claim 7, characterized in that: A sliding groove is provided at the center of the long rod, and the eccentric sliding block (411) is slidably connected to the sliding groove.

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